LISA MARIE Presley’s months-long romance with Nicolas Cage keeps heating up — and even though they’re thinking about marriage they’ve already decided not to have any more children.

“Lisa Marie has two beautiful children and that’s all she’ll ever need,” said a friend of the beautiful star.

“Nic and Lisa Marie have something wonderful and she has her whole life ahead of her again.

“Nic definitely wants more children, but he’s so happy with Lisa Marie that he’ll do anything for her.”

Lisa Marie, 33, has two children from her first marriage to musician Danny Keough. The couple divorced in 1994 and share custody of the children.

“Right now Lisa Marie is focusing on her music career,” her friend told The ENQUIRER.

“She’s worked very hard on her new record and is dead set on making it a success.”

Cage, 37 — who hooked up with The King’s daughter in February — has one child from former girlfriend Kristina Fulton. “Between the two of them they’re already raising three kids,” the friend added.

“With her career on the rise and Nic’s busy schedule, there’s just no room for a baby.

“They both know their past relationships have been a bust and not having more children right now is best for both of them.”